We theoretically investigate the optical output fields of a photonic-molecule optomechanical system in an optomechanically induced transparency (OMIT) regime, in which the optomechanical cavity is optically driven by a strong pump laser field and a weak probe laser field and the mechanical mode is driven by weak coherent phonon driving. The numerical simulations indicate that when the driven frequency of the phonon pump equals the frequency difference of the two laser fields, we show an enhancement OMIT where the probe transmission can exceed unity via controlling the driving amplitude and pump phase of the phonon driving. In addition, the phase dispersion of the transmitted probe field can be modified for different parametric regimes, which leads to a tunable delayed probe light transmission. We further study the group delay of the output probe field with numerical simulations, which can reach a tunable conversion from slow to fast light with the manipulation of the pump laser power, the ratio parameter of the two cavities, and the driving amplitude and phase of the weak phonon pump.

中文翻译：

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具有声子泵的光子分子光机械中的可控快慢光

我们从理论上研究了光机械诱导透明 (OMIT) 机制中光子分子光机械系统的光输出场，其中光机械腔由强泵浦激光场和弱探针激光场光学驱动，机械模式被驱动通过弱相干声子驱动。数值模拟表明，当声子泵的驱动频率等于两个激光场的频率差时，我们展示了一种增强型 OMIT，通过控制声子驱动的驱动幅度和泵浦相位，探针传输可以超过统一。此外，可以针对不同的参数机制修改传输探测场的相位色散，从而实现可调延迟探测光传输。